Portable telephone



FIG. 1 is a front, top, and left side perspective view showing our new design for a portable telephone in an opened position, the broken line showing of a keypad being for illustrative purposes only;

FIG. 2 is a front, top, and left side perspective view thereof in a closed position;

FIG. 3 is a rear elevational view thereof in an open position;

FIG. 4 is a right elevational view thereof;

FIG. 5 is a rear elevational view thereof in a closed position;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a bottom plan view thereof in an open position; and,

FIG. 8 is a bottom plan view thereof in a closed position. 

The ornamental design for a portable telephone, as shown and described. 